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From "Jonathan Gray (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HBASE-1684) Backup (Export/Import) contrib tool for 0.20
Date Thu, 24 Sep 2009 14:37:16 GMT

    [ https://issues.apache.org/jira/browse/HBASE-1684?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12759134#action_12759134

Jonathan Gray commented on HBASE-1684:

@Schubert What do you mean just use the normal API?  These are MapReduce jobs.  You are referring
to wanting to do imports/exports at the HDFS level instead?  (that is not this issue)

Bulk importing can be done with HBASE-48, but it is not yet fully-featured (only works on
single families, doesn't work into existing tables, etc)

Bulk exporting at HFile level is going to require some form of freezing/snapshotting so it's
100% safe and consistent to do that (though it's still possible now, and we're doing it in
production here).  There is an old issue for this as well, HBASE-50.

> Backup (Export/Import) contrib tool for 0.20
> --------------------------------------------
>                 Key: HBASE-1684
>                 URL: https://issues.apache.org/jira/browse/HBASE-1684
>             Project: Hadoop HBase
>          Issue Type: New Feature
>          Components: contrib
>    Affects Versions: 0.20.0
>            Reporter: Jonathan Gray
>            Assignee: stack
>             Fix For: 0.20.1, 0.21.0
>         Attachments: BackupTable.java, ExportImport.java, exportimport.patch, HBASE-1684-trunk.patch,
HBASE-1684-v1.patch, RestoreTable.java
> Add a new Result/KeyValue based Export MapReduce job to contrib for 0.20.
> Make it in the hadoop 0.20 and hbase 0.20 MR API, and hbase 0.20 API (Result/Put).

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